A functionally distinct subset of CD103(+) dendritic cells (DCs) has recently been identified in murine mesenteric lymph nodes (MLN) that induces enhanced FoxP3(+) T cell differentiation, retinoic acid receptor signaling, and gut-homing receptor (CCR9 and alpha4beta7) expression in responding T cells. We show that this function is specific to small intestinal lamina propria (SI-LP) and MLN CD103(+) DCs. CD103(+) SI-LP DCs appeared to derive from circulating DC precursors that continually seed...Expand abstract
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Small intestinal CD103+ dendritic cells display unique functional properties that are conserved between mice and humans.
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